Power shovel



FIG. 1 is a first perspective view of a power shovel showing our new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The portion shown by broken lines is for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a power shovel, as shown and described. 